Ergogenic effects of caffeine and sodium bicarbonate supplementation on intermittent exercise performance preceded by intense arm cranking exercise

Journal of the International Society of Sports Nutrition
Matthaus MarriottMagni Mohr

Abstract

Caffeine and sodium bicarbonate ingestion have been suggested to improve high-intensity intermittent exercise, but it is unclear if these ergogenic substances affect performance under provoked metabolic acidification. To study the effects of caffeine and sodium bicarbonate on intense intermittent exercise performance and metabolic markers under exercise-induced acidification, intense arm-cranking exercise was performed prior to intense intermittent running after intake of placebo, caffeine and sodium bicarbonate. Male team-sports athletes (n = 12) ingested sodium bicarbonate (NaHCO3; 0.4 g.kg(-1) b.w.), caffeine (CAF; 6 mg.kg(-1) b.w.) or placebo (PLA) on three different occasions. Thereafter, participants engaged in intense arm exercise prior to the Yo-Yo intermittent recovery test level-2 (Yo-Yo IR2). Heart rate, blood lactate and glucose as well as rating of perceived exertion (RPE) were determined during the protocol. CAF and NaHCO3 elicited a 14 and 23% improvement (P < 0.05), respectively, in Yo-Yo IR2 performance, post arm exercise compared to PLA. The NaHCO3 trial displayed higher [blood lactate] (P < 0.05) compared to CAF and PLA (10.5 ± 1.9 vs. 8.8 ± 1.7 and 7.7 ± 2.0 mmol.L(-1), respectively) after the Yo-Yo IR2. At ...Continue Reading

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Citations

Apr 14, 2016·Sports Medicine·Alireza NaderiMark E T Willems
Dec 10, 2016·Research in Sports Medicine·Andy SparksLars R Mc Naughton
Dec 7, 2018·Research in Sports Medicine·Juan José SalineroJuan Del Coso
Aug 3, 2018·Journal of the International Society of Sports Nutrition·Chad M KerksickRichard B Kreider
Sep 3, 2021·International Journal of Sport Nutrition and Exercise Metabolism·Tue A H LassenKlavs Madsen
Sep 11, 2021·Journal of the International Society of Sports Nutrition·Jozo GrgicBill I Campbell
Dec 6, 2021·Scandinavian Journal of Medicine & Science in Sports·Maysa V de SousaAndreas M Fritzen

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